{"product_id":"martyr-cmx03m-magnesium-streamline-shaft-anode-1in-194-cmx03m","title":"Martyr CMX03M Magnesium Streamline Shaft Anode – 1\" Shaft | Stainless Allen Screw | Freshwater","description":"\u003ch2\u003eMartyr CMX03M Magnesium Streamline Shaft Anode\u003c\/h2\u003e\n\u003cp\u003eProtect your 1\" prop shaft in freshwater with this precision-cast magnesium streamline shaft anode. Magnesium is the correct sacrificial metal for freshwater use — it has a more active electrochemical potential than zinc or aluminum, making it the only material that provides effective galvanic protection in low-conductivity freshwater environments where zinc and aluminum anodes go passive and stop working.\u003c\/p\u003e\n\u003cp\u003eThe low-drag, hydrodynamic profile minimizes water resistance while the stainless steel Allen head screw locks the anode firmly in place — no rattling, no spinning, no surprises mid-season.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1\" (25mm) diameter prop shafts\u003c\/li\u003e\n\u003cli\u003eFreshwater use only (lakes, rivers, reservoirs)\u003c\/li\u003e\n\u003cli\u003eInboard and inboard\/outboard (I\/O) vessels\u003c\/li\u003e\n\u003cli\u003eReplaces OEM shaft anodes on most standard 1\" shaft configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e CMX03M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 194-CMX03M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Magnesium alloy (sacrificial)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Diameter:\u003c\/strong\u003e 1\" (25mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener:\u003c\/strong\u003e Stainless steel Allen head screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfile:\u003c\/strong\u003e Streamlined \/ hydrodynamic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Freshwater only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e ~140 g\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003eThe CMX03M is the correct choice for any 1\" shaft running in freshwater. This is one of the most common anode mistakes we see — boaters in freshwater lakes install zinc anodes and wonder why their running gear is still corroding. Zinc simply doesn’t work in freshwater; it passivates and provides little to no protection. Magnesium is the right metal for the job.\u003c\/p\u003e\n\u003cp\u003eIf you operate in saltwater or brackish water, see the \u003ca href=\"\/products\/1-shaft-anode-zinc-194-cmx03\"\u003eCMX03 Zinc version\u003c\/a\u003e for saltwater or the \u003ca href=\"\/products\/martyr-cmx03al-aluminum-streamline-shaft-anode-1in-194-cmx03al\"\u003eCMX03AL Aluminum version\u003c\/a\u003e for saltwater and brackish conditions.\u003c\/p\u003e\n\u003cp\u003eAlso available in adjacent sizes: \u003ca href=\"\/products\/sl-shaft-anode-cmx02m-7-8-magnesium-194-cmx02m\"\u003eCMX02M – 7\/8\" Magnesium\u003c\/a\u003e | \u003ca href=\"\/products\/cmx04m-sl-shaft-anode-1-1-8-magnesium-194-cmx04m\"\u003eCMX04M – 1-1\/8\" Magnesium\u003c\/a\u003e\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":50999088676900,"sku":"194-CMX03M","price":27.29,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/194-CMX03_51be380a-530a-4878-a4d5-bb48acf53593.jpg?v=1782799282","url":"https:\/\/marisolmarine.com\/products\/martyr-cmx03m-magnesium-streamline-shaft-anode-1in-194-cmx03m","provider":"Marisol Marine Company","version":"1.0","type":"link"}